| Assay Method Information | |
| | Sandwich ELISA Assay |
| Description: | For measuring the autophosphorylation of the endogenous Tie2 receptor in the cell lysates prepared, a self-prepared anti-Tie2 antibody directed against the N-terminus of the Tie-2 receptor (1.09 mg/ml) and an HRP-coupled anti-phosphotyrosine antibody (Sigma, A4595, clone pY-20) were used. White 96-well ELISA plates (Lumitrac600, Greiner, #655074) were incubated with 100 μl per well of a 1:1000 dilution of the anti-Tie2 antibody in coating buffer [15 mM Na2CO3, 35 mM NaHCO3, pH 9.6] with shaking at 4° C. overnight. The coated ELISA plates were washed three times with 250 μl PBST buffer [0.1% Tween-20 in PBS], the wells were blocked with 250 μl 3% BSA in PBST buffer with shaking at RT for 1-6 h and washed three more times with 250 μl PBST buffer. From the cell lysate plates thawed in the fridge, in each case 100 μl of lysate were transferred into the coated wells of the ELISA plates, and the plates were incubated with shaking at 4° C. overnight. The plates were washed three times with in each case 250 μl of PBST buffer, and 100 μl of a 1:5000 dilution of the anti-phosphotyrosine HRP antibody in 3% Prionex (Calbiochem, #529600) in PBST were then pipetted into each well and the plates were incubated with shaking and protected from light at 4° C. overnight. The plates were washed three times with in each case 250 μl of PBST, and 100 μl of chemiluminescent substrate [BM Chemiluminescence ELISA Substrate (POD) Reagent A and B 1:100, Roche, #1582950] were then pipetted into each well, and after 3 min the plates were measured using a luminescence reader. |
| Affinity data for this assay | |
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